From 0b3ac17660d45414f4802d478e29d58252e2a56b Mon Sep 17 00:00:00 2001
From: cyan <cyjan@mrcyjanek.net>
Date: Wed, 9 Sep 2026 18:02:19 +0800
Subject: [PATCH] createTransaction use BigInt instead of double (#3608)

---
 lib/view_model/send/send_view_model.dart | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/view_model/send/send_view_model.dart b/lib/view_model/send/send_view_model.dart
index 9e3fa7f55..48ba722a9 100644
--- a/lib/view_model/send/send_view_model.dart
+++ b/lib/view_model/send/send_view_model.dart
@@ -907,9 +907,11 @@ abstract class SendViewModelBase extends WalletChangeListenerViewModel with Stor
       final isSendAll = outputs.any((output) => output.sendAll);
 
       if (!isSendAll) {
-        final estimateTxAmountDouble = outputs.fold<double>(
-            0, (acc, output) => acc + (double.tryParse(output.cryptoAmount) ?? 0));
-        if (estimateTxAmountDouble <= 0) throw Exception('Amount must be greater than 0');
+        final estimateTxAmount = outputs.fold<BigInt>(
+            BigInt.zero, (acc, output) => acc + output.cryptoAmountMoney.amount);
+        if (estimateTxAmount <= BigInt.zero) {
+          throw Exception('Amount must be greater than 0');
+        }
       }
 
       pendingTransaction = await wallet.createTransaction(_credentials(provider));